CA2318003C - Hand strapping tool - Google Patents
Hand strapping tool Download PDFInfo
- Publication number
- CA2318003C CA2318003C CA002318003A CA2318003A CA2318003C CA 2318003 C CA2318003 C CA 2318003C CA 002318003 A CA002318003 A CA 002318003A CA 2318003 A CA2318003 A CA 2318003A CA 2318003 C CA2318003 C CA 2318003C
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- CA
- Canada
- Prior art keywords
- outer link
- link member
- feedwheel
- shaft
- strapping tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B13/00—Bundling articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
- B65B59/04—Machines constructed with readily-detachable units or assemblies, e.g. to facilitate maintenance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B13/00—Bundling articles
- B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
- B65B13/185—Details of tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Auxiliary Apparatuses For Manual Packaging Operations (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Surgical Instruments (AREA)
- Clamps And Clips (AREA)
Abstract
A hand strapping tool has a two-piece outer link assembly wherein a first upper outer link member is mounted upon a pivot shaft of the tool, while a second lower outer link member is mounted upon the distal end portion of the feedwheel shaft so as to maintain the feedwheel upon the feedwheel shaft. The second lower outer link member is removably fastened to the first upper outer link member by suitable fasteners whereby when the feedwheel is to be replaced as a result of, for example, wear thereof after the performance of numerous tensioning operations attendant the strapping of articles, objects, loads, or the like, only the lower outer link member needs to be disconnected from the upper outer link member so as to provide access to the feedwheel.
Description
HAND STRAPPING Z'OOL
FIELD OF THE INVENTION
The present invention relates generally to hand strapping tools, and more particularly to a new and improved hand strapping tool wherein the feed wheel mounting struc-ture within the tool facilitates and simplifies the replace-ment of the feed wheel when necessaz:~r due,. for example, to normal wear of the wheel as a result of its use within such hand strapping tools under strap tensioning conditions.
BACRGRODND OF THE INVENTION
Hand strapping tools are conventionally used to apply strapping material, made of either plastic, steel, or similar materials, around various articles, packages, or loads. In operating such a conventional hand strapping tool, the feed wheel, which. is an element or component of the tool tensioning unit, is driven by a suitable motor drive and serves to tension the strapping material to a predetermined amount of tension as determined by stalling of the motor when the predetermined amount of tension level is attained.
Subsequently, the strapping is joined and severed and a new article, package, load, or the like is readied for a strap-ping operation. As a result of such multiple strapping ope-rations involving such tensioning processes, feed wheels un-de~go wear and therefore need to be replaced. However, with conventional hand strapping tools, the replacement of the feed wheel is not especially convenient and is quite time-consuming as can be better appreciated as a result of refer-ence being made to FIGURES 1 and 2 of the drawings.
FIGURES 1 and 2 disclose a conventional hand strapping tool which is generally indicated by the reference character 10. Briefly, the hand strapping tool 10 comprises a tension unit 12 which includes a motor drive, not shown, and a gearbox 14 operatively connected to the tension unit motor drive. An output feedwheel shaft 16 projects laterally outwardly from one side of the gearbox portion 14 of the tension unit 12, and a portion of the external periphery of the feedwheel shaft 16 has a hexagonal configuration. A _--feedwheel 18, having a complementary internal hexagonal pe-ripheral surface, is adapted to be mounted upon the feed-wheel shaft 16 so as to be driven by the feedwheel shaft 16 as a result of the driving force generated by the tension unit motor drive and transmitted by the gearbox 14. The feedwheel shaft 16 passes through an aperture 19 of a break-er foot 20, and the feedwheel 18 is maintained upon the out-er or distal end of the feedwheel shaft 16 by means of an outer link 22, the outer link 22 also being provided with an aperture 23 through which the free or distal end of the feedwheel shaft 16 passes. The outer link 22 is in turn mounted upon a position link 24 by means of a pin 26, wherein the position link 24 and pin 26 comprise a sub-assembly. Position link 24 is mounted upon a support rod 28 through means of another pin 30. A hanger rod 32, as shown in FIGURE 2, has casting flanges or mounting brackets 34, only one of which is shown in FIGURE 2, mounted thereon upon respective opposite sides of the tool.
The tension unit 12, the feedwheel assembly com-prising the feedwheel shaft 16 and the feedwheel 18, and the outer link 22 are mounted upon casting flanges 34 through means of a pivot shaft 36 and a nut 38. The pivot shaft 36 and nut 38 permit the tension unit 12, the feedwheel assem-bly comprising the feedwheel shaft 16 and the feedwheel 18, and the outer link 22 to be pivotally movable between opera-tive and inoperative positions with respect to upper and lower straps which are to be tensioned and joined together and which are shown at 42 and 44 respectively. The pivot shaft 36 is seen to extend or pass through apertures 37,39, 41, and 43 respectively provided within the casting flange ___ 34, outer link 22, breaker foot 20, and the gearbox portion 14 of the tension unit 12. The motor drive of the tension unit 12 is activated by means of a manual trigger lever 40.
It can thus be appreciated that when the feedwheel 18 needs to be replaced, the pivot shaft 36 must first be removed from the tool 10 whereby the entire tension unit as-sembly comprising the tension unit 12, the feedwheel shaft 16 and feedwheel 18, and the outer link 22 are disengaged and able to be removed from the casting flanges 34~. The outer link 22 and the pin 26 must then be removed as a sub-assembly from the position link 24 whereby access to the feedwheel 18 upon the feedwheel shaft 16 is then achieved such that the worn feedwheel 18 can now be replaced. Once the new feedwheel has been placed upon the feedwheel shaft 16, the reverse procedures concerning the disposition or mounting of the outer link 22 and pin 26 upon the position link 24, as well as the disposition or mounting of the en-tire tension unit assembly upon the casting flanges 34 by means of the pivot shaft 36, must then be performed. It can therefore be appreciated that replacement procedures with respect to the feedwheel 18, comprising the disassembly of the tool component parts, and the re-assembly of such parts, as noted hereinabove, can be quite time-consuming.
A need therefore exists in the art for a hand strapping tool wherein the structural assembly of the ten-lion unit, and in particular, the mounting of the feedwheel thereon, is such that replacement of the feedwheeT as neces-sary due to wear or other conditions, is considerably simp-lified in order to render the replacement procedure for the feedwheel relatively easy, straightforward, and quick with minimum production downtime.
SUMMARY OF THE-: INVENTION
Accordingly, the present invention seeks to provide a new and improved hand strapping tool.
Another aspect of the present invention seeks to provide a new and improved hand strapping tool which effectively overcomes the various structural drawbacks of conventional hand strapping tools.
An additional aspect of the present invention seeks to provide a new and improved hand strapping tool wherein the structural mounting of the feedwheel upon the tension unit is such as to render the exchange or replacement of the feedwheel relatively simple, straightforward, and quick so as to minimize production downtime.
A further aspect of the present invention seeks to provide a new and improved hand strapping tool wherein the improved structural mounting of the feedwheel upon the ten-sion unit comprises a minimum number of component parts such that conventional or existing hand strapping tools may be easily and readily retrofitted.
More particularly, the present invention provides a new and improved hand strapping tool wherein the mounting structure for the feedwheel assembly comprises a two-part or two-piece outer link comprising an upper outer link member and a lower outer link member. The upper outer link member is mounted upon the pivot shaft in a manner similar to the outer link members of the existing or ~ conventional hand strapping tools, whereas the lower link member is disposed upon the outer or distal end of the S
feed-wheel shaft so as to maintain the feedwheel mounted upon the feedwheel shaft. The lower link member is fixedly secured to the upper link member by means of two bolt or threaded fasteners. Accordingly, when the feedwheel needs to be replaced, the two bolt or threaded fasteners are simply removed from the outer link assembly comprising the upper outer link member and the lower outer link member whereby the lower outer link member is now able to be removed from the upper outer link member as well as from the outer or distal end of the feedwheel shaft thereby exposing or pro-viding access to the feedwheel which may now be replaced.
When the feedwheel is replaced, the lower outer link member is simply replaced upon the outer or distal end of the feed-wheel shaft, and the two bolt or threaded fasteners are re-inserted so as to fixedly mount the lower outer link member upon the upper outer link member and thereby maintain the lower outer link member upon the feedwheel shaft so as to in turn maintain the feedwheel upon the feedwheel shaft.
BRIRF DESCRIPTION OF THR DRAWINGS
Various other aspects, features; and attendant ad-vantages of the present invention will be more fully appre-ciated from the following detailed description when consid-ered in connection with the accompanying drawings in which like .reference characters designate like or corresponding parts through-out the several views, and wherein:
FIGURE 1 is an exploded perspective view of some of the component parts comprising a conventionally existing PRIOR ART hand strapping tool;
FIGURE 2 is a partial perspective view-showing the hand strapping tool of FIGURE 1 in its assembled state;
FIGURE 3 is a partial perspective view similar to that of FIGURE 2 wherein, however, a hand strapping tool constructed in accordance with the principles and teachings of the present invention and having the new and improved feedwheel mounting system incorporated therein is disclosed;
FIGURE 4 is a front elevational view of the upper outer link component of the new and improved feedwheel mounting system of the present invention as incorporated within the hand strapping tool of FIGURE 3;
FIGURE 5 is a side elevational view of the upper ---outer link component of the new and improved feedwheel mounting system of the present invention as shown in FIGURE
4;
FIGURE 6 is a front elevational view of the lower outer link component of the new and improved feedwheel mounting system of the present invention as incorporated within the hand strapping tool of FIGURE 3; and FIGURE 7 is a side elevational view of the lower outer link component of the new and improved feedwheel mounting system of the present invention as shown in FIGURE
6.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawings, and more particu-lady to FIGURE 3 thereof, the new and improved hand strap-ping tool constructed in accordance with the teachings and principles of the present invention is disclosed and is gen-erally indicated by the reference character 110, while FIG-URES 4-7 disclose the details of the new and improved upper and lower outer link components which comprise the essential component parts of the new and improved feedwheel mounting system incorporated within the tool 110. It is also noted that the hand strapping tool 110 disclosed within FIGURE 3 is essentially the same as that disclosed within FIGURE 2, except as will be specifically noted hereinafter, and there- ___ fore those parts of the tool 110 which correspond to similar parts of the tool 10 disclosed within FIGURE 2 are designat-ed by similar reference characters except that the reference characters of the parts of the tool 110 as disclosed within FIGURE 3 are in the 100 series.
Referring then to FIGURE 3, it is briefly seen that the hand strapping tool 110 comprises the tension unit 112 which has the gearbox 114 operatively associated there-with. The feedwheel 118 is mounted upon the feedwheel shaft 116, and the pivot shaft is shown at 136. However, it is critically noted that in lieu of the single outer link com-ponent or member 22 which mounts the tension unit 12 upon the pivot shaft 36 as disclosed in accordance with the structural arrangement of the PRIOR ART hand strapping tool disclosed in FIGURES 1 and 2, there is provided a two-s part or two-piece outer link sub-assembly which comprises an upper outer link member 122U and a lovier outer link member 122L.
More particularly, with additional reference also being made to FIGURE 4, it is seen that the upper outer link 10 member 122U is provided with an aperture 139 through which the pivot shaft 136 is inserted so as to mount the upper outer link member 122U, as well as the breaker foot 120 and the gearbox portion 114 of the tension unit 112 upon the casting flange or mounting bracket 134. As can be further appreciated as a result of additional reference being made to FIGURE 5, the lower portion of the upper outer link mem-ber 122U also comprises a dependent flanged portion 146 which is set back rearwardly with respect to the front face ---of the upper outer link member 122U and within which a pair of apertures 148, 148 are provided. With additional refer-ence being made to FIGURES 6 and 7, it is seen that the low-er outer link member 122L is provided with an aperture 123 through which the free or distal end portion of feedwheel shaft 116 is disposed, and the upper portion of the lower outer link member 122L is provided with an upstanding flang-ed portion 150 which is disposed forwardly with respect to the rear face of the lower outer link member 122L and within which a pair of apertures 152,152 are provided. The flanged portions 146 and 150 of the upper and lower outer link mem-bers 122U,122L, respectively, comprise complementary struc-tural configurations such that the upper and lower outer link members 122U,122L can be fixedly fastened together when the flanged portions 146 and 150 thereof are disposed in an abutting overlapping disposition with respect to each other and suitable bolt or threaded fasteners 154,154,-as shown in FIGURE 3, are inserted through the sets of apertures 148 and 152.
With particular reference lastly being made to FIGURE 3, it can therefore be readily appreciated that as a result of the particular structural arrangement developed in accordance with the teachings and principles of the present invention by means of which there is provided the two-piece or two-part outer link assembly comprising the upper outer link member 122U and the lower outer link member 122L for mounting and maintaining the disposition of the feedwheel 118 upon the hand strapping tool 110, when the feedwheel 118 is to be replaced, such procedure is simply and quickly ac-complished by simply removing the lower outer link member ---122L from the upper outer link member 122U as a result of removing the fasteners 154,154. The lower outer link member 122L may then be simply removed from the free or distal end portion of the feedwheel shaft 116, and the feedwheel 118 may then be similarly removed and replaced with a new feed-wheel. The lower outer link member 122L may then be simply remounted upon the upper outer link member 122U as a result of reinserting the fasteners 154,154. Thus, the pivot shaft 136 need not be removed from the tool assembly, and similar-ly, the entire tension unit assembly, including the upper outer link member 122U, need not be removed from the tool assembly, that is, for example, from the casting flanges 134,134 as well as from the position link 124.
Thus, it may be seen that as a result of the aforenoted structural arrangement or system, replacement of the feedwheel is readily simplified, is able to be accomp-lished quickly and easily, and production downtime is mini-mized. In addition, by replacing conventional one-piece outer link members, currently in position and in use upon conventional PRIOR ART hand strapping tools, with the new and improved two-piece or two-part outer link structural system, such conventional PRIOR ART hand strapping tools may be readily retrofitted so as to substantially improve the utility and service of such tools from a production point of view.
Obviously, many variations and modifications of the present invention are possible in light of the above teachings. It is therefore to be understood that within the ___ scope of the appended claims, the present invention may be.
practiced otherwise than as specifically described herein.
FIELD OF THE INVENTION
The present invention relates generally to hand strapping tools, and more particularly to a new and improved hand strapping tool wherein the feed wheel mounting struc-ture within the tool facilitates and simplifies the replace-ment of the feed wheel when necessaz:~r due,. for example, to normal wear of the wheel as a result of its use within such hand strapping tools under strap tensioning conditions.
BACRGRODND OF THE INVENTION
Hand strapping tools are conventionally used to apply strapping material, made of either plastic, steel, or similar materials, around various articles, packages, or loads. In operating such a conventional hand strapping tool, the feed wheel, which. is an element or component of the tool tensioning unit, is driven by a suitable motor drive and serves to tension the strapping material to a predetermined amount of tension as determined by stalling of the motor when the predetermined amount of tension level is attained.
Subsequently, the strapping is joined and severed and a new article, package, load, or the like is readied for a strap-ping operation. As a result of such multiple strapping ope-rations involving such tensioning processes, feed wheels un-de~go wear and therefore need to be replaced. However, with conventional hand strapping tools, the replacement of the feed wheel is not especially convenient and is quite time-consuming as can be better appreciated as a result of refer-ence being made to FIGURES 1 and 2 of the drawings.
FIGURES 1 and 2 disclose a conventional hand strapping tool which is generally indicated by the reference character 10. Briefly, the hand strapping tool 10 comprises a tension unit 12 which includes a motor drive, not shown, and a gearbox 14 operatively connected to the tension unit motor drive. An output feedwheel shaft 16 projects laterally outwardly from one side of the gearbox portion 14 of the tension unit 12, and a portion of the external periphery of the feedwheel shaft 16 has a hexagonal configuration. A _--feedwheel 18, having a complementary internal hexagonal pe-ripheral surface, is adapted to be mounted upon the feed-wheel shaft 16 so as to be driven by the feedwheel shaft 16 as a result of the driving force generated by the tension unit motor drive and transmitted by the gearbox 14. The feedwheel shaft 16 passes through an aperture 19 of a break-er foot 20, and the feedwheel 18 is maintained upon the out-er or distal end of the feedwheel shaft 16 by means of an outer link 22, the outer link 22 also being provided with an aperture 23 through which the free or distal end of the feedwheel shaft 16 passes. The outer link 22 is in turn mounted upon a position link 24 by means of a pin 26, wherein the position link 24 and pin 26 comprise a sub-assembly. Position link 24 is mounted upon a support rod 28 through means of another pin 30. A hanger rod 32, as shown in FIGURE 2, has casting flanges or mounting brackets 34, only one of which is shown in FIGURE 2, mounted thereon upon respective opposite sides of the tool.
The tension unit 12, the feedwheel assembly com-prising the feedwheel shaft 16 and the feedwheel 18, and the outer link 22 are mounted upon casting flanges 34 through means of a pivot shaft 36 and a nut 38. The pivot shaft 36 and nut 38 permit the tension unit 12, the feedwheel assem-bly comprising the feedwheel shaft 16 and the feedwheel 18, and the outer link 22 to be pivotally movable between opera-tive and inoperative positions with respect to upper and lower straps which are to be tensioned and joined together and which are shown at 42 and 44 respectively. The pivot shaft 36 is seen to extend or pass through apertures 37,39, 41, and 43 respectively provided within the casting flange ___ 34, outer link 22, breaker foot 20, and the gearbox portion 14 of the tension unit 12. The motor drive of the tension unit 12 is activated by means of a manual trigger lever 40.
It can thus be appreciated that when the feedwheel 18 needs to be replaced, the pivot shaft 36 must first be removed from the tool 10 whereby the entire tension unit as-sembly comprising the tension unit 12, the feedwheel shaft 16 and feedwheel 18, and the outer link 22 are disengaged and able to be removed from the casting flanges 34~. The outer link 22 and the pin 26 must then be removed as a sub-assembly from the position link 24 whereby access to the feedwheel 18 upon the feedwheel shaft 16 is then achieved such that the worn feedwheel 18 can now be replaced. Once the new feedwheel has been placed upon the feedwheel shaft 16, the reverse procedures concerning the disposition or mounting of the outer link 22 and pin 26 upon the position link 24, as well as the disposition or mounting of the en-tire tension unit assembly upon the casting flanges 34 by means of the pivot shaft 36, must then be performed. It can therefore be appreciated that replacement procedures with respect to the feedwheel 18, comprising the disassembly of the tool component parts, and the re-assembly of such parts, as noted hereinabove, can be quite time-consuming.
A need therefore exists in the art for a hand strapping tool wherein the structural assembly of the ten-lion unit, and in particular, the mounting of the feedwheel thereon, is such that replacement of the feedwheeT as neces-sary due to wear or other conditions, is considerably simp-lified in order to render the replacement procedure for the feedwheel relatively easy, straightforward, and quick with minimum production downtime.
SUMMARY OF THE-: INVENTION
Accordingly, the present invention seeks to provide a new and improved hand strapping tool.
Another aspect of the present invention seeks to provide a new and improved hand strapping tool which effectively overcomes the various structural drawbacks of conventional hand strapping tools.
An additional aspect of the present invention seeks to provide a new and improved hand strapping tool wherein the structural mounting of the feedwheel upon the tension unit is such as to render the exchange or replacement of the feedwheel relatively simple, straightforward, and quick so as to minimize production downtime.
A further aspect of the present invention seeks to provide a new and improved hand strapping tool wherein the improved structural mounting of the feedwheel upon the ten-sion unit comprises a minimum number of component parts such that conventional or existing hand strapping tools may be easily and readily retrofitted.
More particularly, the present invention provides a new and improved hand strapping tool wherein the mounting structure for the feedwheel assembly comprises a two-part or two-piece outer link comprising an upper outer link member and a lower outer link member. The upper outer link member is mounted upon the pivot shaft in a manner similar to the outer link members of the existing or ~ conventional hand strapping tools, whereas the lower link member is disposed upon the outer or distal end of the S
feed-wheel shaft so as to maintain the feedwheel mounted upon the feedwheel shaft. The lower link member is fixedly secured to the upper link member by means of two bolt or threaded fasteners. Accordingly, when the feedwheel needs to be replaced, the two bolt or threaded fasteners are simply removed from the outer link assembly comprising the upper outer link member and the lower outer link member whereby the lower outer link member is now able to be removed from the upper outer link member as well as from the outer or distal end of the feedwheel shaft thereby exposing or pro-viding access to the feedwheel which may now be replaced.
When the feedwheel is replaced, the lower outer link member is simply replaced upon the outer or distal end of the feed-wheel shaft, and the two bolt or threaded fasteners are re-inserted so as to fixedly mount the lower outer link member upon the upper outer link member and thereby maintain the lower outer link member upon the feedwheel shaft so as to in turn maintain the feedwheel upon the feedwheel shaft.
BRIRF DESCRIPTION OF THR DRAWINGS
Various other aspects, features; and attendant ad-vantages of the present invention will be more fully appre-ciated from the following detailed description when consid-ered in connection with the accompanying drawings in which like .reference characters designate like or corresponding parts through-out the several views, and wherein:
FIGURE 1 is an exploded perspective view of some of the component parts comprising a conventionally existing PRIOR ART hand strapping tool;
FIGURE 2 is a partial perspective view-showing the hand strapping tool of FIGURE 1 in its assembled state;
FIGURE 3 is a partial perspective view similar to that of FIGURE 2 wherein, however, a hand strapping tool constructed in accordance with the principles and teachings of the present invention and having the new and improved feedwheel mounting system incorporated therein is disclosed;
FIGURE 4 is a front elevational view of the upper outer link component of the new and improved feedwheel mounting system of the present invention as incorporated within the hand strapping tool of FIGURE 3;
FIGURE 5 is a side elevational view of the upper ---outer link component of the new and improved feedwheel mounting system of the present invention as shown in FIGURE
4;
FIGURE 6 is a front elevational view of the lower outer link component of the new and improved feedwheel mounting system of the present invention as incorporated within the hand strapping tool of FIGURE 3; and FIGURE 7 is a side elevational view of the lower outer link component of the new and improved feedwheel mounting system of the present invention as shown in FIGURE
6.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawings, and more particu-lady to FIGURE 3 thereof, the new and improved hand strap-ping tool constructed in accordance with the teachings and principles of the present invention is disclosed and is gen-erally indicated by the reference character 110, while FIG-URES 4-7 disclose the details of the new and improved upper and lower outer link components which comprise the essential component parts of the new and improved feedwheel mounting system incorporated within the tool 110. It is also noted that the hand strapping tool 110 disclosed within FIGURE 3 is essentially the same as that disclosed within FIGURE 2, except as will be specifically noted hereinafter, and there- ___ fore those parts of the tool 110 which correspond to similar parts of the tool 10 disclosed within FIGURE 2 are designat-ed by similar reference characters except that the reference characters of the parts of the tool 110 as disclosed within FIGURE 3 are in the 100 series.
Referring then to FIGURE 3, it is briefly seen that the hand strapping tool 110 comprises the tension unit 112 which has the gearbox 114 operatively associated there-with. The feedwheel 118 is mounted upon the feedwheel shaft 116, and the pivot shaft is shown at 136. However, it is critically noted that in lieu of the single outer link com-ponent or member 22 which mounts the tension unit 12 upon the pivot shaft 36 as disclosed in accordance with the structural arrangement of the PRIOR ART hand strapping tool disclosed in FIGURES 1 and 2, there is provided a two-s part or two-piece outer link sub-assembly which comprises an upper outer link member 122U and a lovier outer link member 122L.
More particularly, with additional reference also being made to FIGURE 4, it is seen that the upper outer link 10 member 122U is provided with an aperture 139 through which the pivot shaft 136 is inserted so as to mount the upper outer link member 122U, as well as the breaker foot 120 and the gearbox portion 114 of the tension unit 112 upon the casting flange or mounting bracket 134. As can be further appreciated as a result of additional reference being made to FIGURE 5, the lower portion of the upper outer link mem-ber 122U also comprises a dependent flanged portion 146 which is set back rearwardly with respect to the front face ---of the upper outer link member 122U and within which a pair of apertures 148, 148 are provided. With additional refer-ence being made to FIGURES 6 and 7, it is seen that the low-er outer link member 122L is provided with an aperture 123 through which the free or distal end portion of feedwheel shaft 116 is disposed, and the upper portion of the lower outer link member 122L is provided with an upstanding flang-ed portion 150 which is disposed forwardly with respect to the rear face of the lower outer link member 122L and within which a pair of apertures 152,152 are provided. The flanged portions 146 and 150 of the upper and lower outer link mem-bers 122U,122L, respectively, comprise complementary struc-tural configurations such that the upper and lower outer link members 122U,122L can be fixedly fastened together when the flanged portions 146 and 150 thereof are disposed in an abutting overlapping disposition with respect to each other and suitable bolt or threaded fasteners 154,154,-as shown in FIGURE 3, are inserted through the sets of apertures 148 and 152.
With particular reference lastly being made to FIGURE 3, it can therefore be readily appreciated that as a result of the particular structural arrangement developed in accordance with the teachings and principles of the present invention by means of which there is provided the two-piece or two-part outer link assembly comprising the upper outer link member 122U and the lower outer link member 122L for mounting and maintaining the disposition of the feedwheel 118 upon the hand strapping tool 110, when the feedwheel 118 is to be replaced, such procedure is simply and quickly ac-complished by simply removing the lower outer link member ---122L from the upper outer link member 122U as a result of removing the fasteners 154,154. The lower outer link member 122L may then be simply removed from the free or distal end portion of the feedwheel shaft 116, and the feedwheel 118 may then be similarly removed and replaced with a new feed-wheel. The lower outer link member 122L may then be simply remounted upon the upper outer link member 122U as a result of reinserting the fasteners 154,154. Thus, the pivot shaft 136 need not be removed from the tool assembly, and similar-ly, the entire tension unit assembly, including the upper outer link member 122U, need not be removed from the tool assembly, that is, for example, from the casting flanges 134,134 as well as from the position link 124.
Thus, it may be seen that as a result of the aforenoted structural arrangement or system, replacement of the feedwheel is readily simplified, is able to be accomp-lished quickly and easily, and production downtime is mini-mized. In addition, by replacing conventional one-piece outer link members, currently in position and in use upon conventional PRIOR ART hand strapping tools, with the new and improved two-piece or two-part outer link structural system, such conventional PRIOR ART hand strapping tools may be readily retrofitted so as to substantially improve the utility and service of such tools from a production point of view.
Obviously, many variations and modifications of the present invention are possible in light of the above teachings. It is therefore to be understood that within the ___ scope of the appended claims, the present invention may be.
practiced otherwise than as specifically described herein.
Claims (11)
1.-A hand strapping tool, comprising:
a mounting bracket;
a tension unit;
a feedwheel shaft operatively connected at a first proximal end portion thereof to said tension unit, and hav-ing a second distal end portion;
a feedwheel mounted upon said feedwheel shaft;
a pivot shaft for pivotally mounting said tension unit upon said mounting bracket; and an outer link for maintaining said feedwheel upon said feedwheel shaft, said outer link comprising a first outer link member mounted upon said pivot shaft, and a second outer link member mounted upon said distal end por-tion of said feedwheel shaft and removably fastened to said first outer link member, whereby when said feedwheel is to be removed from said feedwheel shaft, only said second outer link member need be disconnected from said first outer link member.
a mounting bracket;
a tension unit;
a feedwheel shaft operatively connected at a first proximal end portion thereof to said tension unit, and hav-ing a second distal end portion;
a feedwheel mounted upon said feedwheel shaft;
a pivot shaft for pivotally mounting said tension unit upon said mounting bracket; and an outer link for maintaining said feedwheel upon said feedwheel shaft, said outer link comprising a first outer link member mounted upon said pivot shaft, and a second outer link member mounted upon said distal end por-tion of said feedwheel shaft and removably fastened to said first outer link member, whereby when said feedwheel is to be removed from said feedwheel shaft, only said second outer link member need be disconnected from said first outer link member.
2. The hand strapping tool as set forth in Claim 1, wherein:
said first outer link member comprises a dependent flanged portion; and said second outer link member comprises an upstand-ing flanged portion complementary to said dependent flanged portion of said first outer link member.
said first outer link member comprises a dependent flanged portion; and said second outer link member comprises an upstand-ing flanged portion complementary to said dependent flanged portion of said first outer link member.
3. The hand strapping tool as set forth in Claim 2, wherein:
said first outer link member comprises a first pair of apertures defined within said dependent flanged por-tion for receiving fasteners for fastening said first and second outer link members together; and said second outer link member comprises a second pair of apertures defined within said upstanding flanged portion for receiving the fasteners for fastening said first and second outer link members together.
said first outer link member comprises a first pair of apertures defined within said dependent flanged por-tion for receiving fasteners for fastening said first and second outer link members together; and said second outer link member comprises a second pair of apertures defined within said upstanding flanged portion for receiving the fasteners for fastening said first and second outer link members together.
4. The hand strapping tool as set forth in Claim 2, wherein:
said first outer link member has a front surface, and said first dependent flanged portion of said first outer link member is set back rearwardly from said front surface of said first outer link member; and said second outer link member has a rear surface, and said second upstanding flanged portion of said second outer link member is disposed forwardly from said rear sur-face of said second outer link member.
said first outer link member has a front surface, and said first dependent flanged portion of said first outer link member is set back rearwardly from said front surface of said first outer link member; and said second outer link member has a rear surface, and said second upstanding flanged portion of said second outer link member is disposed forwardly from said rear sur-face of said second outer link member.
5. The hand strapping tool as set forth in Claim 1, wherein:
said first outer link member comprises an upper outer link member; and said second outer link member comprises a lower outer link member.
said first outer link member comprises an upper outer link member; and said second outer link member comprises a lower outer link member.
6. The hand strapping tool as set forth in Claim 1, further comprising:
fastener means for fixedly fastening said second outer link member to said first outer link member.
fastener means for fixedly fastening said second outer link member to said first outer link member.
7. A hand strapping tool, comprising:
a mounting bracket;
a tension unit;
a feedwheel shaft operatively connected at a first proximal end portion thereof to said tension unit, and hav-ing a second distal end portion;
a feedwheel mounted upon said feedwheel shaft;
a pivot shaft for pivotally mounting said tension unit upon said mounting bracket; and a first upper outer link member mounted upon said pivot shaft, and a second lower outer link member removably fastened to said first upper outer link member and mounted upon said distal end portion of said feedwheel shaft so as to maintain said feedwheel upon said feedwheel shaft, whereby when said feedwheel is to be removed from said feedwheel shaft, only said second lower outer link mem-ber need be disconnected from said first outer link member.
a mounting bracket;
a tension unit;
a feedwheel shaft operatively connected at a first proximal end portion thereof to said tension unit, and hav-ing a second distal end portion;
a feedwheel mounted upon said feedwheel shaft;
a pivot shaft for pivotally mounting said tension unit upon said mounting bracket; and a first upper outer link member mounted upon said pivot shaft, and a second lower outer link member removably fastened to said first upper outer link member and mounted upon said distal end portion of said feedwheel shaft so as to maintain said feedwheel upon said feedwheel shaft, whereby when said feedwheel is to be removed from said feedwheel shaft, only said second lower outer link mem-ber need be disconnected from said first outer link member.
8. The hand strapping tool as set forth in Claim 7, wherein:
said first upper outer link member comprises a de-pendent flanged portion; and said second lower outer link member comprises an upstanding flanged portion complementary to said dependent flanged portion of said first upper outer link member.
said first upper outer link member comprises a de-pendent flanged portion; and said second lower outer link member comprises an upstanding flanged portion complementary to said dependent flanged portion of said first upper outer link member.
9. The hand strapping tool as set forth in Claim 8, wherein:
said first upper outer link member comprises a first pair of apertures defined within said dependent flang-ed portion for receiving fasteners for fastening said first and second upper and lower outer link members together; and said second lower outer link member comprises a second pair of apertures defined within said upstanding flanged portion for receiving the fasteners for fastening said first and second upper and lower outer link members to-gether.
said first upper outer link member comprises a first pair of apertures defined within said dependent flang-ed portion for receiving fasteners for fastening said first and second upper and lower outer link members together; and said second lower outer link member comprises a second pair of apertures defined within said upstanding flanged portion for receiving the fasteners for fastening said first and second upper and lower outer link members to-gether.
10. The hand strapping tool as set forth in Claim 8, where-in:
said first upper outer link member has a front surface, and said first dependent flanged portion of said first upper outer link member is set back rearwardly from said front surface of said first upper outer link member;
and said second lower outer link member has a rear surface, and said second upstanding flanged portion of said second lower outer link member is disposed forwardly from said rear surface of said second lower outer link member.
said first upper outer link member has a front surface, and said first dependent flanged portion of said first upper outer link member is set back rearwardly from said front surface of said first upper outer link member;
and said second lower outer link member has a rear surface, and said second upstanding flanged portion of said second lower outer link member is disposed forwardly from said rear surface of said second lower outer link member.
11. The hand strapping tool as set forth in Claim 7, further comprising:
fastener means for fixedly fastening said second lower outer link member to said first upper outer link mem-ber.
fastener means for fixedly fastening said second lower outer link member to said first upper outer link mem-ber.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/428,256 | 1999-10-27 | ||
| US09/428,256 US6260337B1 (en) | 1999-10-27 | 1999-10-27 | Hand strapping tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2318003A1 CA2318003A1 (en) | 2001-04-27 |
| CA2318003C true CA2318003C (en) | 2006-11-14 |
Family
ID=23698133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002318003A Expired - Fee Related CA2318003C (en) | 1999-10-27 | 2000-09-12 | Hand strapping tool |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US6260337B1 (en) |
| EP (1) | EP1095858B1 (en) |
| JP (1) | JP4739498B2 (en) |
| KR (1) | KR100775569B1 (en) |
| CN (1) | CN1154600C (en) |
| AT (1) | ATE232808T1 (en) |
| AU (1) | AU736319B2 (en) |
| BR (1) | BR0004880A (en) |
| CA (1) | CA2318003C (en) |
| DE (1) | DE60001435T2 (en) |
| NZ (1) | NZ507131A (en) |
| TW (1) | TW480239B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6575086B2 (en) * | 2001-07-12 | 2003-06-10 | Illinois Tool Works, Inc. | Strapping machine strapping head with pivoting anvil |
| US6907717B2 (en) * | 2002-06-14 | 2005-06-21 | Illinois Tool Works, Inc. | Dual motor strapper |
| US10518914B2 (en) | 2008-04-23 | 2019-12-31 | Signode Industrial Group Llc | Strapping device |
| US11999516B2 (en) | 2008-04-23 | 2024-06-04 | Signode Industrial Group Llc | Strapping device |
| US9932135B2 (en) | 2012-09-24 | 2018-04-03 | Signode Industrial Group Llc | Strapping device |
| DE102014108692A1 (en) | 2014-06-20 | 2015-12-24 | Titan Umreifungstechnik Gmbh & Co. Kg | Closure device for in particular plastic strapping bands |
| CN110142721B (en) * | 2019-06-28 | 2021-04-27 | 东莞利富高塑料制品有限公司 | Automobile wire harness mounting and fixing mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2204572A (en) * | 1936-11-16 | 1940-06-18 | Acme Steel Co | Electrically driven stretching tool |
| US2838970A (en) * | 1955-08-26 | 1958-06-17 | Thomas & Betts Corp | Replaceable die nest crimping tool |
| US3028885A (en) * | 1958-06-02 | 1962-04-10 | Signode Steel Strapping Co | Power strap tensioning tool |
| US2943524A (en) * | 1959-01-02 | 1960-07-05 | John A Bourne | Pneumatically-operated, slidable inner jaw wrench |
| US3012457A (en) * | 1960-05-20 | 1961-12-12 | David D Powell | Removable jaw face for a slidable side jaw wrench |
| US3284049A (en) * | 1965-03-31 | 1966-11-08 | Signode Corp | Feed wheel drive mechanism for strapping tools |
| GB1423688A (en) * | 1973-05-31 | 1976-02-04 | Gerrard Ind Ld | Package strapping tool |
| US4015643A (en) * | 1976-01-21 | 1977-04-05 | Signode Corporation | Tensioning tool with self-energizing gripper plug |
| JPS61213176A (en) * | 1985-03-18 | 1986-09-22 | Citizen Watch Co Ltd | Paper feeder for printer |
| JP2747690B2 (en) * | 1986-09-18 | 1998-05-06 | 日立マクセル株式会社 | Color identification device |
| JPS63125113A (en) * | 1986-10-30 | 1988-05-28 | 鋼鈑工業株式会社 | Manual welding bundling machine |
| DE3841489A1 (en) * | 1988-12-09 | 1990-06-13 | Hoesch Ag | STRAP STRAPPING DEVICE |
| JPH04311858A (en) * | 1991-04-10 | 1992-11-04 | Sony Corp | Tape guiding device |
| US5224642A (en) * | 1991-12-11 | 1993-07-06 | Davis Steven D | Pull wheel having spaced apart flanges with an elastomer thereon |
| DE69301171T3 (en) * | 1992-03-10 | 1999-06-17 | Signode Corp | Hand strapping device |
| US5284285A (en) * | 1992-03-13 | 1994-02-08 | Precision Handling Devices | Bearing assembly and web feed device incorporating same |
| JPH06208825A (en) * | 1992-11-10 | 1994-07-26 | Fuji Electric Co Ltd | Circuit breaker |
| US5392821A (en) * | 1993-10-08 | 1995-02-28 | Signode Corporation | Strapping tool with mechanism for admitting, retaining, and releasing steel strap |
| US5518043A (en) * | 1995-01-09 | 1996-05-21 | Illinois Tool Works | Readily assembled and disassembled, modular, pneumatically powered strapping tool |
| CA2176636A1 (en) * | 1995-05-26 | 1996-11-27 | Nikolaus Stamm | Tensioning and sealing apparatus for strapping an object with a band |
| JPH11281702A (en) * | 1998-03-27 | 1999-10-15 | Ngk Insulators Ltd | Overcurrent detecting device for distribution line |
-
1999
- 1999-10-27 US US09/428,256 patent/US6260337B1/en not_active Expired - Lifetime
-
2000
- 2000-08-28 CN CNB001228234A patent/CN1154600C/en not_active Expired - Fee Related
- 2000-09-01 TW TW089117989A patent/TW480239B/en not_active IP Right Cessation
- 2000-09-04 KR KR1020000052003A patent/KR100775569B1/en active IP Right Grant
- 2000-09-12 CA CA002318003A patent/CA2318003C/en not_active Expired - Fee Related
- 2000-09-25 NZ NZ507131A patent/NZ507131A/en not_active IP Right Cessation
- 2000-10-17 EP EP00309110A patent/EP1095858B1/en not_active Expired - Lifetime
- 2000-10-17 BR BR0004880-1A patent/BR0004880A/en not_active IP Right Cessation
- 2000-10-17 DE DE60001435T patent/DE60001435T2/en not_active Expired - Lifetime
- 2000-10-17 AT AT00309110T patent/ATE232808T1/en not_active IP Right Cessation
- 2000-10-25 AU AU66701/00A patent/AU736319B2/en not_active Ceased
- 2000-10-27 JP JP2000329215A patent/JP4739498B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2318003A1 (en) | 2001-04-27 |
| BR0004880A (en) | 2001-06-19 |
| ATE232808T1 (en) | 2003-03-15 |
| NZ507131A (en) | 2001-01-26 |
| AU6670100A (en) | 2001-05-03 |
| KR100775569B1 (en) | 2007-11-16 |
| US6260337B1 (en) | 2001-07-17 |
| EP1095858B1 (en) | 2003-02-19 |
| JP4739498B2 (en) | 2011-08-03 |
| DE60001435D1 (en) | 2003-03-27 |
| TW480239B (en) | 2002-03-21 |
| CN1154600C (en) | 2004-06-23 |
| AU736319B2 (en) | 2001-07-26 |
| DE60001435T2 (en) | 2003-08-14 |
| EP1095858A1 (en) | 2001-05-02 |
| KR20010077863A (en) | 2001-08-20 |
| CN1333165A (en) | 2002-01-30 |
| JP2001171626A (en) | 2001-06-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20200914 |